Pigmentation Disorders - An abnormal pigmentation, referred to as dyschromia, can be caused by various internal or external factors. Sun exposure is the biggest external cause of pigmentation disorders., Hyperpigmentation - The overproduction of pigment., Chloasma - Characterized by increased deposits of pigment in the skin; found mainly on forehead, nose, and cheeks; also called moth patches or liver spots. Generally caused by cumulative sun exposure., Lentigo - A flat, pigmented area similar to a freckle; small, yellow-brown spots. are multiple freckles., Actinic lentigo new - Result from sunlight exposure; also called liver spots, Macules - small, flat, colored spots on the skin., Melasma - Triggered by hormonal changes, often during pregnancy or with birth control issues, Nevus - Also known as birthmark. A malformation of the skin from abnormal pigmentation or dilated capillaries., Stain - Abnormal brown or wine-colored skin discoloration with a circular or irregular shape. A port wine stain is a birthmark, which is the vascular type of nevus, Tan - Exposure to the sun causes tanning, a change in pigmentation due to melanin production as a defense against UV radiation that damages the skin.,

Pigmentation Disorders

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